Set Inventory Level

curl --request POST \
  --url https://api.fluid.app/api/inventory_levels/set \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "inventory_level": {
    "variant_id": 70421,
    "warehouse_id": 212,
    "available": 240,
    "committed": 12,
    "unavailable": 4,
    "reason": "Opening stock for Scranton warehouse"
  }
}
'

import requests

url = "https://api.fluid.app/api/inventory_levels/set"

payload = { "inventory_level": {
        "variant_id": 70421,
        "warehouse_id": 212,
        "available": 240,
        "committed": 12,
        "unavailable": 4,
        "reason": "Opening stock for Scranton warehouse"
    } }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    inventory_level: {
      variant_id: 70421,
      warehouse_id: 212,
      available: 240,
      committed: 12,
      unavailable: 4,
      reason: 'Opening stock for Scranton warehouse'
    }
  })
};

fetch('https://api.fluid.app/api/inventory_levels/set', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.fluid.app/api/inventory_levels/set",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'inventory_level' => [
        'variant_id' => 70421,
        'warehouse_id' => 212,
        'available' => 240,
        'committed' => 12,
        'unavailable' => 4,
        'reason' => 'Opening stock for Scranton warehouse'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.fluid.app/api/inventory_levels/set"

	payload := strings.NewReader("{\n  \"inventory_level\": {\n    \"variant_id\": 70421,\n    \"warehouse_id\": 212,\n    \"available\": 240,\n    \"committed\": 12,\n    \"unavailable\": 4,\n    \"reason\": \"Opening stock for Scranton warehouse\"\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.fluid.app/api/inventory_levels/set")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"inventory_level\": {\n    \"variant_id\": 70421,\n    \"warehouse_id\": 212,\n    \"available\": 240,\n    \"committed\": 12,\n    \"unavailable\": 4,\n    \"reason\": \"Opening stock for Scranton warehouse\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.fluid.app/api/inventory_levels/set")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"inventory_level\": {\n    \"variant_id\": 70421,\n    \"warehouse_id\": 212,\n    \"available\": 240,\n    \"committed\": 12,\n    \"unavailable\": 4,\n    \"reason\": \"Opening stock for Scranton warehouse\"\n  }\n}"

response = http.request(request)
puts response.read_body

{
  "inventory_level": {
    "id": 48213,
    "committed": 12,
    "available": 240,
    "on_hand": 256,
    "unavailable": 4,
    "adjustments": null,
    "unavailable_item_counts_by_category": null,
    "warning": null,
    "variant": {
      "id": 70421,
      "sku": "DM-20LB-CASE",
      "track_quantity": true,
      "keep_selling": false
    },
    "product": {
      "id": 31877,
      "title": "Dunder Mifflin 20lb Copy Paper",
      "image_url": "https://cdn.fluid.app/dunder-mifflin/products/20lb-copy-paper.jpg"
    },
    "warehouse": {
      "id": 212,
      "country": {
        "id": 233,
        "name": "United States",
        "iso": "US"
      },
      "address": {
        "id": 90544,
        "city": "Scranton",
        "state": "PA",
        "address1": "1725 Slough Avenue",
        "postal_code": "18505"
      }
    }
  },
  "meta": {
    "request_id": "5f0c2d9e-8b1a-4c3e-9d7f-2a6b8e4c1f03",
    "timestamp": "2026-09-14T15:32:08Z"
  }
}

{
  "inventory_level": {
    "id": 48213,
    "committed": 12,
    "available": 240,
    "on_hand": 256,
    "unavailable": 4,
    "adjustments": null,
    "unavailable_item_counts_by_category": null,
    "warning": null,
    "variant": {
      "id": 70421,
      "sku": "DM-20LB-CASE",
      "track_quantity": true,
      "keep_selling": false
    },
    "product": {
      "id": 31877,
      "title": "Dunder Mifflin 20lb Copy Paper",
      "image_url": "https://cdn.fluid.app/dunder-mifflin/products/20lb-copy-paper.jpg"
    },
    "warehouse": {
      "id": 212,
      "country": {
        "id": 233,
        "name": "United States",
        "iso": "US"
      },
      "address": {
        "id": 90544,
        "city": "Scranton",
        "state": "PA",
        "address1": "1725 Slough Avenue",
        "postal_code": "18505"
      }
    }
  },
  "meta": {
    "request_id": "5f0c2d9e-8b1a-4c3e-9d7f-2a6b8e4c1f03",
    "timestamp": "2026-09-14T15:32:08Z"
  }
}

{
  "error_message": "inventory_level variant must belong to this company",
  "errors": [],
  "meta": {
    "request_id": "5f0c2d9e-8b1a-4c3e-9d7f-2a6b8e4c1f03",
    "timestamp": "2026-09-14T15:32:08Z"
  }
}

{
  "message": "<string>",
  "error": "<string>",
  "error_message": "<string>",
  "errors": "<string>",
  "meta": {
    "request_id": "<string>",
    "timestamp": "2023-11-07T05:31:56Z",
    "code": "<string>",
    "blocked_date": "2026-11-30",
    "blocked_day": 30,
    "allowed_date": "2026-11-28",
    "scheduled_date": "2026-12-10",
    "last_bill_date": "2026-11-10",
    "requested_date": "2026-11-30",
    "payment_uuid": "<string>",
    "error_details": [
      {
        "code": "<string>",
        "field": "<string>",
        "payment": "not_attempted",
        "message": "<string>"
      }
    ],
    "coded_recovery": true
  }
}